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Brad, ASE Certified Technician
Category: Ford
Satisfied Customers: 2366
Experience:  ASE Certified Master Technician
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What is the firing order of a 97 ford f-150 with the 4.

Customer Question

what is the firing order of a 97 ford f-150 with the 4.6L engine with the vin letter #6
Submitted: 9 years ago.
Category: Ford
Expert:  Brad replied 9 years ago.
HelloCustomer and welcome to!

First, let me illustrate the cylinder numbering:


4 8
3 7
2 6
1 5


Now, I will upload this .PDF file for you (Adobe Acrobat format) that shows which wires go where and how to route it. This should take care of things for you.


Good luck!
Customer: replied 9 years ago.

this is the firing order i been tring but the truck is still running like i have 1 of the wires crossed.


Expert:  Brad replied 9 years ago.
It's possible you have bad wire or two, or that a spark plug became damaged somehow during the tune up process.

Was it running like this before tuning it up?
Customer: replied 9 years ago.
No and I put 2 sets of the same exact plugs that were in it because i thought that i must have damaged 1 or 2 of them.
Expert:  Brad replied 9 years ago.
That illustration looks like it can be a little confusing.

I made a new one for you to refer to.. it's a bit easier to read: